641994327483 has 16 divisors (see below), whose sum is σ = 856565391360. Its totient is φ = 427709830464.

The previous prime is 641994327473. The next prime is 641994327503. The reversal of 641994327483 is 384723499146.

It is not a de Polignac number, because 641994327483 - 2⁶ = 641994327419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (641994327473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54917103 + ... + 54928791.

It is an arithmetic number, because the mean of its divisors is an integer number (53535336960).

Almost surely, 2^641994327483 is an apocalyptic number.

641994327483 is a deficient number, since it is larger than the sum of its proper divisors (214571063877).

641994327483 is a wasteful number, since it uses less digits than its factorization.

641994327483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22378.

The product of its digits is 31352832, while the sum is 60.

The spelling of 641994327483 in words is "six hundred forty-one billion, nine hundred ninety-four million, three hundred twenty-seven thousand, four hundred eighty-three".